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Viewing changes to tests/box2d/Box2D/Dynamics/Contacts/b2ChainAndPolygonContact.cpp

  • Committer: Package Import Robot
  • Author(s): Sylvestre Ledru
  • Date: 2013-05-02 13:11:51 UTC
  • Revision ID: package-import@ubuntu.com-20130502131151-q8dvteqr1ef2x7xz
Tags: upstream-1.4.1~20130504~adb56cb
Import upstream version 1.4.1~20130504~adb56cb

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tests/box2d/Box2D/Dynamics/Contacts/b2ChainAndPolygonContact.cpp
 
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/*
 
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* Copyright (c) 2006-2010 Erin Catto http://www.box2d.org
 
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*
 
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* This software is provided 'as-is', without any express or implied
 
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* warranty.  In no event will the authors be held liable for any damages
 
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* arising from the use of this software.
 
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* Permission is granted to anyone to use this software for any purpose,
 
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* including commercial applications, and to alter it and redistribute it
 
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* freely, subject to the following restrictions:
 
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* 1. The origin of this software must not be misrepresented; you must not
 
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* claim that you wrote the original software. If you use this software
 
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* in a product, an acknowledgment in the product documentation would be
 
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* appreciated but is not required.
 
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* 2. Altered source versions must be plainly marked as such, and must not be
 
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* misrepresented as being the original software.
 
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* 3. This notice may not be removed or altered from any source distribution.
 
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*/
 
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#include <Box2D/Dynamics/Contacts/b2ChainAndPolygonContact.h>
 
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#include <Box2D/Common/b2BlockAllocator.h>
 
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#include <Box2D/Dynamics/b2Fixture.h>
 
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#include <Box2D/Collision/Shapes/b2ChainShape.h>
 
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#include <Box2D/Collision/Shapes/b2EdgeShape.h>
 
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#include <new>
 
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using namespace std;
 
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b2Contact* b2ChainAndPolygonContact::Create(b2Fixture* fixtureA, int32 indexA, b2Fixture* fixtureB, int32 indexB, b2BlockAllocator* allocator)
 
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{
 
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        void* mem = allocator->Allocate(sizeof(b2ChainAndPolygonContact));
 
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        return new (mem) b2ChainAndPolygonContact(fixtureA, indexA, fixtureB, indexB);
 
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}
 
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void b2ChainAndPolygonContact::Destroy(b2Contact* contact, b2BlockAllocator* allocator)
 
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{
 
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        ((b2ChainAndPolygonContact*)contact)->~b2ChainAndPolygonContact();
 
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        allocator->Free(contact, sizeof(b2ChainAndPolygonContact));
 
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}
 
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b2ChainAndPolygonContact::b2ChainAndPolygonContact(b2Fixture* fixtureA, int32 indexA, b2Fixture* fixtureB, int32 indexB)
 
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: b2Contact(fixtureA, indexA, fixtureB, indexB)
 
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{
 
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        b2Assert(m_fixtureA->GetType() == b2Shape::e_chain);
 
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        b2Assert(m_fixtureB->GetType() == b2Shape::e_polygon);
 
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}
 
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void b2ChainAndPolygonContact::Evaluate(b2Manifold* manifold, const b2Transform& xfA, const b2Transform& xfB)
 
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{
 
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        b2ChainShape* chain = (b2ChainShape*)m_fixtureA->GetShape();
 
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        b2EdgeShape edge;
 
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        chain->GetChildEdge(&edge, m_indexA);
 
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        b2CollideEdgeAndPolygon(        manifold, &edge, xfA,
 
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                                                                (b2PolygonShape*)m_fixtureB->GetShape(), xfB);
 
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}